diff --git a/polynum/request/views.py b/polynum/request/views.py
index 11e7aea..f42cb2e 100644
--- a/polynum/request/views.py
+++ b/polynum/request/views.py
@@ -374,7 +374,7 @@ def request_action(request, pk, workflow_pk):
 
 @transaction.commit_on_success
 def request_duplicate(request, pk):
-    from django.core.files import ContentFile
+    from django.core.files.base import ContentFile
     poly_request = get_object_or_404(Request, pk=pk)
     new_poly_request = get_object_or_404(Request, pk=pk)
     new_poly_request.pk = None